Ehh, the superman show (on Adult Swim) isn't that bad from an animation standpoint. It wouldn't stand out as an anime but you could have picked any other AS snow outside of Bookdocks (which I believe is also animated by an Asian studio) and Metalocalyose to drive that point. Western shows suffice or even try to prefer a cruder, cheaper art style. In small part because American animators are compensated better (but still paid peanuts for its economy).